Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huy tuan do snippets" » "huu tuan do snippets", "huy tran do snippets", "huy quan do snippets", "huy toan do snippets", "huy truan doi snippets", "huy quan doi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("huy tuan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huy tuan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huy tuan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huy tuan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.